Gun safe



FIG. 1 is a perspective view of a gun safe, showing my new design;

FIG. 2 is a Front view thereof;

FIG. 3 is a Back view thereof;

FIG. 4 is a Left-side view thereof;

FIG. 5 is a Right-side view thereof;

FIG. 6 is a Top view thereof; and,

FIG. 7 is a Bottom view thereof.

The broken lines in the drawings depict portions of the gun safe that form no part of the claimed design. 

CLAIM The ornamental design for a gun safe, as shown and described. 